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Date: Thu, 13 Jun 2024 13:59:28 -0700 (PDT)
X-X-Sender: jeremyd AT resin DOT csoft DOT net
To: cygwin AT cygwin DOT com
Subject: unable to remove oddly-named directory
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Backstory: rust's test suite makes an oddly-named directory as part of a
test:
https://github.com/rust-lang/rust/blob/921645c737f1d6d107a0a10ca5ee129d364dcd7a/tests/run-make/non-unicode-in-incremental-dir/rmake.rs

When trying to clean up after a rust build/test with rm -rf, it results in
a "Directory not empty" error.

Thankfully, this can be simply reproduced with the following two bash
commands (on cygwin 3.5.3):

mkdir -p foo/$'\uD800'
rm -rf foo

This fails with: rm: cannot remove 'foo': Directory not empty
when it should succeed.

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